Feasibility and potential of prefabricated porous concrete as a component to make concrete structures self-healing

Title: Feasibility and potential of prefabricated porous concrete as a component to make concrete structures self-healing
Author(s): Senot Sangadji and Erik Schlangen
Paper category : conference
Book title: International RILEM Conference on Advances in Construction Materials Through Science and Engineering
Editor(s): Christopher Leung and K.T. WAN
ISBN: 978-2-35158-116-2
e-ISBN: 978-2-35158-117-9
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 553 - 559
Total Pages: 7
Nb references: 19
Language: English

Abstract: Concrete is complex composite material which undergoes changes during its lifetime. To optimize its durability effectively healing intervention at the right time and location is needed. One of the proposed ideas at Microlab TU Delft is to make a porous layer inside of concrete structure that can be infused with healing material. While still on its preliminary stage, this paper examines potential and feasibility of this new self healing technique. PVA dissolving plastic was used to keep prefabricated porous concrete porous while self compacting concrete was casted around it. Tensile test was applied to create crack close to notch in the middle of sample height. Then an epoxy-based healing material was filled into the porous layer to make it dense and seal the crack completely. The test results are discussed using image of longitudinally (vertical) cross section of sample to see how epoxy filled pore spaces and cracks.

Online publication: 2011-10-31
Publication type : full_text
Public price (Euros): 0.00